Draft-gear yoke.



S. BIHASELTINE.

DRAFT GEAR YOKE.

APPLICATION mu) APR. 13, I916- asnzww we. 21, Ian.

Patented 001;. 9, 1917.

INVENTOR.

BY g 21 T ATTORNEY m H.\ M SQ mm S S E E w w m UNITED STATES PATENT OFFICE.

a STACY no mmms, or onlosoo, tumors, sssmnon r WILLIAM H. mnmn; or

cum, miw roux.

DBAI'LGEAB YOKE.

minnow iieli iirifi is, on, Sofia] ms. 66,531. ae'nevved August 27, 161a serial To alto/m it met (madeh.-

Be it kn wn t I, STACY B. Hummus, a citizen of thel nite'd States, residifi' at Chicago, in the county of Cook and state of Illinois, have invented a' certain new and useful Improvement in draft-Gear Ypkes, of which the following is a full, clear, concise, and exact'description reference being had to theac'coinpaliying drawings, forming a part ofthis specification. 7

This invention relates to improvements in draft gear yolzcs.

For several years past, the railroads have been desirous of obtaining a drawbar and yoke connection which will avoid slotting; of the sills and at the same time be readily detaohable. Furthermore the railroads are demandinga yoke connection of the above char cter which is adapted to all types of stan ard draw bars whether the latter halve coupler key slots or not. A further requisite demanded by the railroads is a detaohable draw bar and yoke connection so at"- wange'd that theParts are easily accessiand wherein the draw-bar may be re moved or replaced without disturbing: the gear proper.

Theobject of my invention is to provide a yoke for railway draft r g'gings of ple construction and which will embody a] the advantageous features above indicated.

In the drawing forming a part of this specification, Figure 1 is a side elevation of one ioiimpf-yoke embodying myimprovements. Fig. 2 is a horizontal seciionofthe yokeillustrated :i Fig. 1 and ta en on the line 2-2 thereo Fig.3 is a front end elevation of the yoke. Figs} and 5 are detail perspectives of one of the locking blocks and spreader employed. And Fig. 6 is-a longitudinal,- central section of a tandem voke embodying my improvements.

Referring to said drawing, 10 denotes a standard draw-bar having the usual butt 11 provided with upper shoulder 12 and lower shoulder 13. The yoke A. which as shown is preferably a steel casting, is provided withupper arm 14, lower arm 15, rear connecting piece 16, and a hollow. boxlike hood or head 17 at its front end, the hood being v open at the front and provided with side walls 18-48, and upper Wall 19, the upper wall 19 being provided on its inner face with an integral, transversely extending gib or shoulder 20, the latter being adapted to Specification o! Letters Patent.

Patented oat. a, 19 17.

lie. IMfih cooperate with the upper shoulder 12 of the draw bar'. ithin the yoke a shocli ahsorbing member is illustrated conventionally by dotted lines, the shock absorber shown in the drawing being a well known type of friction gear. y l

he lower wall 21 of thehood 'i-s o'fiset downwardly from the lower 6 oft e oke so that when the locking ocks, hereinafter described, are removed. the drawbar may be dropped down to cleai the shoulder and thereby removed, To look the draw-bar in position, I hate provided two locking blocks 22 and 23end a spreader 24. The lockingrb'locks 22am 23 are made right and left as will liefunderstood and each comprises a horizontally extending portion 25, upwardly extending shoulder or gib 26 which engages the lower shoulder 13 of th draw-bar, the shoulder 26 being extended laterally outwardly from the horizontal portion as indicated at 27. Each portion 27 of each block is adapted to be inserted laterally or sideivis'e throug corresponding rectangular openings 28 in the side walls of the hood, the latter being silita'b'ly reinforced around said openings as indicated at 29. The spreader member 24 comprises a horizontal fiat portion 30 which tape slightly toward its rear eiid and is po'inteiii as in' icated at 31. an upstanding shoulder or gi 32 and :1 depending perforated ear The ear 33 is adapted to aline with a corresponclinah formed our 34 on the. undersideof the hood and the block 30fis detachably held in position by a lfiolt35.

The parts are assembled by rst placing the draw-bar within the hood. then liftin the amwiii and inserting" the bloclis 22' an 23 thereunder from the front end of the yoke. The width of the blocks 22 and 23 is such that both may be inserted simultaneously when the spreader member 24 is not in place. The blocks 22 and 23 are then pushed rearwardly until the shouldered portions thereof come into alinement with said openings 28-28. Thereupon, the blocks 22 and23 are pushed outwardly or separated which may be done with any suitable tool or by inserting the tapered spreader 24. As the latter is pushed inwardly it is apparent that it will force the looking blocks 22- and 23 to their outermost position and so long as the spreader member 24 remains in place, the blocks 22 and 23 will be held in oper ative position.

It will be understood that the inner faces 36-36 of the horizontal ortions of the locking blocks are bevele to correspond with the taper of the spreader block 24;

. In the construction illustrated in Fig. 6,

all of the parts are the same dxcept that the yoke A is provided with upper and lower shoulders 4040 which are arranged to be engaged by the rear face of the draw-bar butt so that the yoke will be pushed rearwardly in bufiing and thereby adapt the invention to tandem yokes.

Although I have herein shown and described what I now consider the preferred means of carrying out my invention, the some is merely illustrative and I contemplate all changes and modifications that'come within the scope of the claims appended hereto.

I claim:

1. A yoke' provided with a hooded forward end within which is ada ted'to be received a shouldered draw-bar utt, the side walls of the hooded end being provided with shoulders, said yoke being provided with means arranged to engage the upper shoulder of a draw-bar butt, and devices, cotipen able with the lower shoulder of a draw-bar butt, for detachably lockin the oke to a draw-bar, said devices inolu in s ouldered blocks insertible and removab e from the front end of the yoke while the draw-bar is in place, said blocks being movable laterally after the same have been lnserted within the hood to thereby engage with said shoulders on the side walls of the hooded end, and means for retaining said blocks in operative position.

2. A yoke provided with a hooded forward end within which is adapted to. be received a shouldered draw-bar butt, said yoke being provided with means arranged to engage the upper shoulder of a draw-bar butt, and devices, coiiperable with the lower shoulder ofadraW-bar butt, for detachably locking'the yoke to a draw-bar, said devices includin two 'blocks and a s readerall insertible rom the front end 0 the y ke.

3. A yoke rovided with a hooded forward end wit in which is ada ted to be received a shouldered drawbar utt, the side walls of the hooded end having recesses, said yoke being provided with means arranged to engage the upper shoulder of a drawmar butt, and devices, (:06 erable with the lower shoulder of a drawar butt, for detachably locking the yoke to a draw-bar, said devices including a plurality of shouldered blocks insertible from the front end of the yoke, some of said blocks being shiftable latorally to on age in said recesses.

it. A key ess yoke of the character described having a hooded forward end the latter having an integral transit sely extending upper shoulder arran ed to engage the uppershoulder of a drawer, a pair of shouldered blocks insertible from the front end of the yoke and arranged to be ositioned beneath the draw-bar with the s 10l1lders engagin the lower shoulder of a draw bar butt, ant? means for holding said shouldered blocks in operative position.

5. In a device of the character described, the combination with a shouldered drawbar, of a cast steel yoke, said yoke having a hooded forward end within which is re ceived the butt end of the draw-bar, and means for detachably locking said draw-bar and yoke together, said means including a pair of shouldered blocks insertible from the front end of the yoke, said blocks having laterally extended shoulders, the side walls of the hooded end having recesses into which said laterally extended shoulders are adapted tobe positioned, and a spreader member also insertible from the front end of the yoke between said blocks, and detachable means for holding said spreader in position.

In witness that I claim the foregoing l have hereunto subscribed my name this 15th day of March, 1916.

STACY B. HASELTINE. 

